If you are free check your candidate campaign web site, get involved in driving others to the polls.

If you have some free time be sure to bring your video camera to the polls, you will have to stand outside set parameters; if you are in key states it might be worth your while to document any potential voter suppression.

Expect the scary robo calls and disregard them.
Bring ID to the polling place and check ahead of time to clarify the id issue in your state.